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Finding the Fourth Proportional to 225,767.82, 311,573.64 and 125,165.82

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Solution

The fourth proportional to 225,767.82, 311,573.64 and 125,165.82 is: 172,736.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,767.82 : 311,573.64 = 125,165.82 : x
  2. Step 2: Convert to fraction form
    225,767.82/311,573.64 = 125,165.82/x
  3. Step 3: Cross multiply
    225,767.82x = 311,573.64 × 125,165.82
  4. Step 4: Simplify right side
    225,767.82x = 38,998,370,140.98
  5. Step 5: Solve for x
    x = 38,998,370,140.98/225,767.82
  6. Step 6: Final answer
    x = 172,736.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.